Luchorpan (Card)

 Cards that can upgrade Earthforce (ability): 

Lesser Earth Bomb – Chapter III: Chaos and the Crown, Part 1: Fire Command Post

Quake Bomb – Chapter III: Chaos and the Crown, Part 1: Earth Farmlands

3rd Exploration: Hunters Island: Sharkfin Pass

Ability Stats - Earthforce
Last for 3 Turns at 5*